Apple's iPad and the 13 dwarfs | Fortune Tech | People Data, Infographics & Sweet Stats |

The iPad's share of tablet Web traffic edged up in May. The others are going nowhere.

, is a mobile ad networks that runs about 4 billion spots per month across 300,000 websites in the U.S. and Canada and -- shades of the N.S.A. --  collects metadata on some tens of millions of tablet Web impressions.

Link to the full report: May 2013 Tablet Update.